HiRDB hasn't equivalents for ORA_HASH function. SQLWays leaves it as is and adds message /* SQLWays: Could not convert 'ORA_HASH' */.

Oracle:

select ora_hash(col1, 99, 5) from t;

HiRDB:

select ora_hash(col1, 99, 5) from t;
/* SQLWays: Could not convert 'ora_hash' */